public function testUpdatePks()
{
$pks = array(1, 2, 3);
$tests = UnitTest::update($pks, array('string_value' => 'derek name test'));
$this->assertEquals(3, $tests->count());
// check if names were updated
$test = UnitTest::find(1);
$this->assertEquals('derek name test', $test->string_value);
$this->assertEquals('1', $test->integer_value);
$test = UnitTest::find(2);
$this->assertEquals('derek name test', $test->string_value);
$this->assertEquals('2', $test->integer_value);
$test = UnitTest::find(3);
$this->assertEquals('derek name test', $test->string_value);
$this->assertEquals('3', $test->integer_value);
}